The Experts below are selected from a list of 16902 Experts worldwide ranked by ideXlab platform
Christian Brenneis - One of the best experts on this subject based on the ideXlab platform.
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Ecological Validity of walking capacity tests following rehabilitation in people with multiple sclerosis.
PloS one, 2019Co-Authors: Rainer Ehling, Gabriel Bsteh, Andreas Muehlbacher, Kay Hermann, Christian BrenneisAbstract:Background Walking capacity tests are commonly used to evaluate interventions aiming at reducing walking impairment in people with multiple sclerosis (pwMS). However, their Ecological Validity has recently been questioned. The aim of the present study was to investigate the Ecological Validity of the 2- and 6-minutes walking tests (2MWT and 6MWT) and the timed 25-foot walk (T25FW) after 28 days of multidisciplinary inpatient rehabilitation (MIR) in pwMS using accelerometry. Methods PwMS wore an accelerometer on 7 consecutive days within a 14-day period prior to MIR, performed 2/6MWT and T25FW at the beginning and at the end of MIR, followed by another 7 consecutive days of accelerometry. Results Significant improvements in 2/6MWT and T25FW after MIR in a cohort of 76 pwMS (mean age = 47.9, SD 8.3 years) were overall correlated to a significant gain in everyday life mobility (total steps/day). However, the correlation was strongly dependent on pre-existing walking disability defined by EDSS and only pwMS with “mild” walking impairment (EDSS 2–3.5) were able to transfer benefits measurable by walking capacity tests into improved everyday life mobility, while pwMS with “moderate to severe” walking disability (EDSS 4–6.5) were not. Conclusion Ecological Validity of changes in walking capacity tests following MIR is strongly dependent on pre-existing walking impairment.
Rainer Ehling - One of the best experts on this subject based on the ideXlab platform.
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Ecological Validity of walking capacity tests following rehabilitation in people with multiple sclerosis.
PloS one, 2019Co-Authors: Rainer Ehling, Gabriel Bsteh, Andreas Muehlbacher, Kay Hermann, Christian BrenneisAbstract:Background Walking capacity tests are commonly used to evaluate interventions aiming at reducing walking impairment in people with multiple sclerosis (pwMS). However, their Ecological Validity has recently been questioned. The aim of the present study was to investigate the Ecological Validity of the 2- and 6-minutes walking tests (2MWT and 6MWT) and the timed 25-foot walk (T25FW) after 28 days of multidisciplinary inpatient rehabilitation (MIR) in pwMS using accelerometry. Methods PwMS wore an accelerometer on 7 consecutive days within a 14-day period prior to MIR, performed 2/6MWT and T25FW at the beginning and at the end of MIR, followed by another 7 consecutive days of accelerometry. Results Significant improvements in 2/6MWT and T25FW after MIR in a cohort of 76 pwMS (mean age = 47.9, SD 8.3 years) were overall correlated to a significant gain in everyday life mobility (total steps/day). However, the correlation was strongly dependent on pre-existing walking disability defined by EDSS and only pwMS with “mild” walking impairment (EDSS 2–3.5) were able to transfer benefits measurable by walking capacity tests into improved everyday life mobility, while pwMS with “moderate to severe” walking disability (EDSS 4–6.5) were not. Conclusion Ecological Validity of changes in walking capacity tests following MIR is strongly dependent on pre-existing walking impairment.
Martin Daumer - One of the best experts on this subject based on the ideXlab platform.
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Ecological Validity of walking capacity tests in multiple sclerosis.
PloS one, 2015Co-Authors: Jan Patrick Stellmann, Anneke Neuhaus, N. Götze, S. Briken, Christian Lederer, Michaela Schimpl, Christoph Heesen, Martin DaumerAbstract:BACKGROUND: Ecological Validity implicates in how far clinical assessments refer to real life. Short clinical gait tests up to ten meters and 2- or 6-Minutes Walking Tests (2MWT/6MWT) are used as performance-based outcomes in Multiple Sclerosis (MS) studies and considered as moderately associated with real life mobility. OBJECTIVE: To investigate the Ecological Validity of 10 Meter Walking Test (10mWT), 2MWT and 6MWT. METHODS: Persons with MS performed 10mWT, 6MWT including 2MWT and 7 recorded days by accelerometry. Ecological Validity was assumed if walking tests represented a typical walking sequence in real-life and correlations with accelerometry parameters were strong. RESULTS: In this cohort (n=28, medians: age=45, EDSS=3.2, disease duration=9 years), uninterrupted walking of 2 or 6 minutes occurred not frequent in real life (2.61 and 0.35 sequences/day). 10mWT correlated only with slow walking speed quantiles in real life. 2MWT and 6MWT correlated moderately with most real life walking parameters. CONCLUSION: Clinical gait tests over a few meters have a poor Ecological Validity while Validity is moderate for 2MWT and 6MWT. Mobile accelerometry offers the opportunity to control and improve the Ecological Validity of MS mobility outcomes. Language: en
Bruce Caplan - One of the best experts on this subject based on the ideXlab platform.
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Ecological Validity of walking speed assessment after traumatic brain injury: a pilot study
The Journal of head trauma rehabilitation, 2004Co-Authors: Anne M. Moseley, Stephanie Lanzarone, Johanna M Bosman, Mirjam A Van Loo, Rob A De Bie, Leanne Hassett, Bruce CaplanAbstract:Objective To assess the Ecological Validity of walking speed measurement after traumatic brain injury (TBI). Participants Ten people with TBI who could walk independently and were participating in a rehabilitation program. Design Walking speed on 3 clinical gait tests (comfortable and fast pace over a 10-m distance and a 6-minute walk test) in 3 "natural" environments (a corridor in a brain injury rehabilitation unit, a car park of a metropolitan shopping center, and inside a metropolitan shopping center). Normative data were collected for 275 able-bodied pedestrians as they walked in the 3 natural environments. Results For subjects with TBI, agreement between the speeds used in the clinical gait tests and the natural environments was poor (intraclass correlation coefficient [ICC] values ranged from -0.24 to 0.63). The closest speed match was the comfortable paced 10-m walk test and walking in a corridor of a brain injury rehabilitation unit (ICC 0.63). Able-bodied pedestrians walked at significantly faster speeds than did subjects with TBI in all 3 natural environments. Conclusions Comfortable walking speed appears to have the highest Ecological Validity of the clinical gait tests investigated. Practice in natural and more complex environments should be incorporated into walking rehabilitation programs for people with TBI.
Naomi Chaytor - One of the best experts on this subject based on the ideXlab platform.
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Construct Validity, Ecological Validity and acceptance of self-administered online neuropsychological assessment in adults
The Clinical neuropsychologist, 2020Co-Authors: Naomi Chaytor, Celestina Barbosa-leiker, Laura Germine, Luciana Mascarenhas Fonseca, Sterling Mcpherson, Katherine R. TuttleAbstract:The goal of this project was to explore the initial psychometric properties (construct and Ecological Validity) of self-administered online (SAO) neuropsychological assessment (using the www.testmy...
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The Ecological Validity of neuropsychological assessment and the role of depressive symptoms in moderate to severe traumatic brain injury.
Journal of the International Neuropsychological Society : JINS, 2007Co-Authors: Naomi Chaytor, Nancy R. Temkin, Joan Machamer, Sureyya DikmenAbstract:Evaluating the Ecological Validity of neuropsychological tests has become an increasingly important topic. Previous research suggests that neuropsychological tests have a moderate level of Ecological Validity when predicting everyday functioning. The presence of depressive symptoms, however, may impact the relationship between neuropsychological tests and real world performance. The current study empirically tests this hypothesis in a sample of 216 participants with moderate to severe traumatic brain injury (TBI) who completed neuropsychological testing, self-report of mood symptoms, and report of everyday functioning six months post-injury. Contrary to some previous research and clinical lore, results indicated that depression was weakly related to neuropsychological test performance, although it was more strongly related to everyday functioning. Neuropsychological test performance was also significantly related to everyday functioning. The Ecological Validity of the neuropsychological tests together was not impacted by depressive symptoms, when predicting significant other ratings of functional status. However, patient self-report seems somewhat less related to neuropsychological performance in those with significant depressive symptoms. Neuropsychological test performance was equally related to self and other report of everyday functioning in patients without significant depressive symptoms.
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Improving the Ecological Validity of executive functioning assessment
Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists, 2006Co-Authors: Naomi Chaytor, Maureen Schmitter-edgecombe, Robert B. BurrAbstract:The current study investigated ways to improve the Ecological Validity of the neuropsychological assessment of executive functioning through the formal assessment of compensatory strategies and environmental cognitive demands. Results indicated that the group of executive functioning tests (i.e., Trail Making Test, Wisconsin Card Sorting Test, Stroop, and Controlled Oral Word Association Test) accounted for 18-20% of the variance in everyday executive ability as measured by the Dysexecutive Questionnaire and Brock Adaptive Functioning Questionnaire. The addition of extra-test variables significantly increased the variance in everyday executive ability accounted for. The current study adds to the literature on the Ecological Validity of executive functioning assessment by highlighting the importance of extra-test variables when trying to understand the complex relationship between cognitive testing and real world performance.
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The Ecological Validity of neuropsychological tests: a review of the literature on everyday cognitive skills.
Neuropsychology review, 2003Co-Authors: Naomi Chaytor, Maureen Schmitter-edgecombeAbstract:Evaluating the Ecological Validity of neuropsychological tests has become an increasingly important topic over the past decade. In this paper, we provide a comprehensive review of the research on the Ecological Validity of neuropsychological tests, as it pertains to everyday cognitive skills. This review is presented in the context of several theoretical issues facing Ecological Validity research. Overall, the research suggests that many neuropsychological tests have a moderate level of Ecological Validity when predicting everyday cognitive functioning. The strongest relationships were noted when the outcome measure corresponded to the cognitive domain assessed by the neuropsychological tests. Several other factors that may moderate the degree of Ecological Validity established for neuropsychological tests are in need of further exploration. These factors include the effects of the population being tested, the approach utilized (verisimilitude vs. veridicality), the person completing the outcome measure (significant other vs. clinician), illness severity, and time from injury until evaluation. In addition, a standard measurement of outcome for each cognitive domain is greatly needed to allow for comparison across studies.
